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Consolidated Statements of Equity (Unaudited) - USD ($)
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
AOCI Attributable to Parent [Member]
Noncontrolling Interest [Member]
Total
BALANCE (in shares) at Aug. 31, 2020 9,099,990          
BALANCE at Aug. 31, 2020 $ 182,000 $ 17,415,043 $ 42,472,810 $ (3,410,438) $ 3,045,026 $ 59,704,441
Stock issued for employee stock purchase plan (in shares) 4,646          
Stock issued for employee stock purchase plan $ 93 36,099 0 0 36,192
Stock option expense 0 181,669 0 0 181,669
Net income 0 0 1,262,399 0 142,758 1,405,157
Comprehensive income (loss) $ 0 0 0 230,760 67,905 298,665
BALANCE (in shares) at Nov. 30, 2020 9,104,636          
BALANCE at Nov. 30, 2020 $ 182,093 17,632,811 43,735,209 (3,179,678) 3,255,689 61,626,124
BALANCE (in shares) at Aug. 31, 2021 9,184,811          
BALANCE at Aug. 31, 2021 $ 183,696 18,736,268 46,973,092 (3,525,030) 3,382,555 65,750,581
Stock issued for employee stock purchase plan (in shares) 2,635          
Stock issued for employee stock purchase plan $ 53 38,479 0 0 0 38,532
Stock option expense 0 232,883 0 0 0 232,883
Net income 0 0 4,493,759 0 228,074 4,721,833
Comprehensive income (loss) $ 0 0 0 (337,055) (72,009) (409,064)
Stock options exercised (in shares) 16,000          
Stock options exercised $ 320 138,880 0 0 0 139,200
Investment by non-controlling interest 0 0 0 0 (200,000) (200,000)
Dividends paid to shareholders $ 0 0 (643,121) 0 0 (643,121)
BALANCE (in shares) at Nov. 30, 2021 9,203,446          
BALANCE at Nov. 30, 2021 $ 184,069 $ 19,146,510 $ 50,823,730 $ (3,862,085) $ 3,338,620 $ 69,630,844